Heat exchange device, heat exchange system, and heat exchange method

Abstract

[Problem] To provide a heat exchange device with which efficient electric power generation can be performed while transfer of a heat amount is maintained. [Solution] A heat exchange device comprising a heat exchange section 1 and a magnetic body 2. The heat exchange section 1 includes a first heat transmission interface 3 in contact with a heat source, and a second heat transmission interface 4 in contact with a heat bath having a temperature different from that of the heat source. The magnetic body 2 is interposed between the first heat transmission interface 3 and the second heat transmission interface 4 of the heat exchange section 1, and includes a magnetization component in a direction intersecting a heat flux produced between the first heat transmission interface 3 and the second heat transmission interface 4.

The invention claimed is: 
     
       1. A heat exchange device comprising:
 a heat exchanger including a first heat transfer interface in contact with a heat source and a second heat transfer interface in contact with a heat reservoir having a temperature different from the heat source; and 
 a magnetic body being sandwiched between the first heat transfer interface and the second heat transfer interface of the heat exchanger and having a magnetization component in a direction intersecting a heat flux generated between the first heat transfer interface and the second heat transfer interface, wherein 
 the heat exchanger forms a flow path of at least one of the heat source and the heat reservoir, 
 and the heat exchanger is formed by a pipe of the magnetic body having the magnetization component in a circumferential direction, and forms the flow path inside the pipe. 
 
     
     
       2. The heat exchange device according to  claim 1 , wherein the magnetic body is a multi-layered structure of a magnetic insulating body and a magnetic conductor. 
     
     
       3. The heat exchange device according to  claim 2 , wherein the aggregation body of the magnetic body forms a stack structure. 
     
     
       4. The heat exchange device according to  claim 1 , wherein the magnetic body is an aggregation body of at least two types of magnetic body conductors. 
     
     
       5. The heat exchange device according to  claim 1 , wherein the heat exchange device forms a reservoir of at least one of the heat source and the heat reservoir. 
     
     
       6. The heat exchange device according to  claim 5 , wherein the heat exchanger has a folded structure. 
     
     
       7. The heat exchange device according to  claim 1 , further comprising:
 a connector electrically connecting the magnetic body and an external circuit, wherein 
 the connector outputs power generated in the magnetic body to the external circuit, and sends, based on power input from the external circuit, the power to the magnetic body. 
 
     
     
       8. A heat exchange device comprising:
 a plurality of heat exchangers configured to include a first heat transfer interface in contact with a heat source and a second heat transfer interface in contact with a heat reservoir having a temperature different from the heat source; and 
 a magnetic body being sandwiched between the first heat transfer interface and the second heat transfer interface of each of the plurality of the heat exchangers and having a magnetization component in a direction intersecting a heat flux generated between the first heat transfer interface and the second heat transfer interface, 
 wherein each of the heat exchangers is provided in such a way that at least the first heat transfer interfaces face each other or the second heat transfer interfaces face each other. 
 
     
     
       9. The heat exchange device according to  claim 8 , further comprising:
 a thermal conductor between of the first heat transfer interface of the heat exchanger and the second heat transfer interface of the adjacent heat exchanger. 
 
     
     
       10. A heat exchange system comprising:
 a heat exchange device configured to include 
 a heat exchanger including a first heat transfer interface in contact with a heat source and a second heat transfer interface in contact with a heat reservoir having a temperature different from the heat source; and 
 a magnetic body being sandwiched between the first heat transfer interface and the second heat transfer interface of the heat exchanger and having a magnetization component in a direction intersecting a heat flux generated between the first heat transfer interface and the second heat transfer interface; and 
 a controller which controls power supplied to a device, wherein 
 the controller supplies power to the device, based on power acquired from thermoelectromotive force generated in the magnetic body of the heat exchange device. 
 
     
     
       11. The heat exchange system according to  claim 10 , further comprising:
 a temperature sensor which measures the heat exchanger and a temperature of the heat exchange device; and 
 a heat flow sensor which measures a heat flow flowing into the heat exchanger, wherein 
 the controller controls the heat exchange device, based on a temperature measured by the temperature sensor and a heat flow measured by the heat flow sensor. 
 
     
     
       12. The heat exchange system according to  claim 11 , wherein the controller performs control in such a way that current flows to the magnetic body, based on power input from a power supply when a temperature measured by the temperature sensor is equal to or more than a reference. 
     
     
       13. A heat exchange method comprising:
 sandwiching, between a first heat transfer interface in contact with a heat source and a second heat transfer interface in contact with a heat reservoir having a temperature different from the heat source, a magnetic body having a magnetization component in a direction intersecting a heat flux generated between the first heat transfer interface and the second heat transfer interface; 
 causing liquid in a reservoir of the heat reservoir being formed at a position in contact with the second heat transfer interface to be vaporized by heat of the heat source in contact with the first heat transfer interface or a fluid flowing from the heat source, and cooling the heat source or a fluid flowing from the heat source; 
 causing the first heat transfer interface to be in contact with the heat source or a first fluid sent from the heat source; 
 causing the second heat transfer interface to be in contact with the heat reservoir or a second fluid sent from the heat reservoir; and 
 outputting power generated by thermoelectromotive force in the magnetic body to outside. 
 
     
     
       14. The heat exchange method according to  claim 13 , further comprising:
 causing a fluid of any one of the first fluid and the second fluid to flow inside a pipe of the magnetic body having the magnetization component in a circumferential direction, and causing another fluid of the first fluid and the second fluid to flow outside the pipe. 
 
     
     
       15. The heat exchange method according to  claim 13 , further comprising:
 arranging a plurality of the magnetic bodies each sandwiched between the first heat transfer interface and the second heat transfer interface in such a way that the first heat transfer interfaces face each other and the second heat transfer interfaces face each other, 
 introducing the first fluid sent from the heat source to a region sandwiched between the first heat transfer interfaces, and 
 introducing the second fluid sent from the heat reservoir to a region sandwiched between the second heat transfer interfaces. 
 
     
     
       16. The heat exchange method according to  claim 13 , further comprising:
 measuring a temperature around the magnetic body, 
 measuring a heat flow flowing into the magnetic body, and 
 controlling a thermoelectric conversion operation in the magnetic body, based on the temperature and the heat flow being measured. 
 
     
     
       17. The heat exchange method according to  claim 13 , further comprising:
 performing control in such a way that current flows to the magnetic body, based on power input from a power supply when the measured temperature is equal to or more than a reference.